How to calculate the sum of interior angles of a triangle

Описание: In this clip learn how to calculate the sum of interior angles of a triangle.

To calculate the sum of the interior angles the following formula is used ((n-2)180)/n.

The triangle in this example is a regular polygon.

Regular polygon are 2D shapes where all of the sides are congruent and the measure of each angle is congruent.

These polygons are also known as equilateral and equiangular.

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